Thread subject: Diptera.info :: Drosophilidae, Zaprionus from Azerbaijan

Posted by Dmitry Gavryushin on 12-11-2008 19:23
#1

21 and 22 October 2008, Lenkoran district, Burcali, on sap exudate of Quercus castaneifolia, 3 females and 2 males mounted. I would naturally suggest widespread (and still spreading) Z. indianus (quoted for the Palearctic Region together with Z. tuberculatus and Z. ghesquierei), but in the key by Chassagnard & Tsacas (Ann.Soc.Entomol.Fr. (N.S.), 1993, 29(2): 173-194) it evidently belongs to the same vittiger-subgroup but doesn't seem to have characters leading to indianus (frons without silvery median line, scutellum rather with a touch of white apically). In the original description (faulty as it is, according to Okada's marks), though, Gupta doesn't mention that silvery line at all. I decided to leave genitalia preparation for experts.

Posted by Dmitry Gavryushin on 12-11-2008 19:25
#2

The head.

Posted by Dmitry Gavryushin on 12-11-2008 19:26
#3

A dorsal view.

Posted by Dmitry Gavryushin on 12-11-2008 19:27
#4

Scutellum and left fore femur.

Posted by Nikita Vikhrev on 12-11-2008 19:29
#5

Isn't it a very nice fly?!

Edited by Nikita Vikhrev on 12-11-2008 22:10

Posted by Dmitry Gavryushin on 12-11-2008 19:33
#6

And much closer than South Africa (or Egypt)...

Posted by Paul Beuk on 12-11-2008 20:19
#7

These are so beautiful!

Posted by Dmitry Gavryushin on 03-12-2009 20:40
#8

Identified as Zaprionus indianus by Dr. Vasily Sidorenko.

Posted by Maddin on 12-12-2009 01:03
#9

There is a nice website about this fly and its distribution:
http://www.kimvdlinde.com/professional/Zaprionus%20distribution.php

Years ago I went collecting in Azerbaijan - absolutely awesome flies there, but the bureaucracy there is crazy.....

Posted by Maddin on 12-12-2009 02:18
#10

Kim just added your record to her world map!

Posted by Dmitry Gavryushin on 12-12-2009 12:12
#11

Many thanks for letting me know Martin. There's also a male collected in late October in Krasnodar Territory (Sochi/Adler) - I'm not sure whether Zaprionus is recorded from Russia.

Posted by Dmitry Gavryushin on 12-01-2010 23:02
#12

That single male from Adler is even more interesting (from tuberculatus group), let's wait for an expert opinion.

Posted by KimvdLinde on 06-02-2010 06:54
#13

I am actually going to remove the record. I had a second look at the images, and I am going to disagree with my colleague Sidorenko on the identification on the basis of the last image that shows that the composite spines are placed on tubercules, which places it in a different set of species excluding indianus.

Posted by Dmitry Gavryushin on 07-02-2010 00:55
#14

OK Kim, actually I had some doubts, too... Maybe I'll have a chance to show it to someone else...

Posted by KimvdLinde on 18-02-2010 14:57
#15

Ok, i stand corrected. Most of the individuals I had seen did not have tubercles, but it was pointed out to me that some do, and if they do, they form a series of tubercles that decrease in size from the body side towards the tip of the leg. So, I checked my collection more careful and came to the conclusion I have to retract my earlier assessment and will re-add the location to the map.

Posted by Paul Beuk on 18-02-2010 15:37
#16

The re-assessment re-assessed: a re-re-assessment.